I can tend you can tend she can tend we can tend you can tend they can tend
Forma con V-ing
I can be tending you can be tending she can be tending we can be tending you can be tending they can be tending
Perfecto
I can have tended you can have tended she can have tended we can have tended you can have tended they can have tended
Perfecto con V-ing
I can have been tending you can have been tending she can have been tending we can have been tending you can have been tending they can have been tending
Negación
Forma simple
I cannot tend you cannot tend she cannot tend we cannot tend you cannot tend they cannot tend
Forma con V-ing
I cannot be tending you cannot be tending she cannot be tending we cannot be tending you cannot be tending they cannot be tending
Perfecto
I cannot have tended you cannot have tended she cannot have tended we cannot have tended you cannot have tended they cannot have tended
Perfecto con V-ing
I cannot have been tending you cannot have been tending she cannot have been tending we cannot have been tending you cannot have been tending they cannot have been tending
Forma interrogativa
Forma simple
can I tend? can you tend? can she tend? can we tend? can you tend? can they tend?
Forma con V-ing
can I be tending? can you be tending? can she be tending? can we be tending? can you be tending? can they be tending?
Perfecto
can I have tended? can you have tended? can she have tended? can we have tended? can you have tended? can they have tended?
Perfecto con V-ing
can I have been tending? can you have been tending? can she have been tending? can we have been tending? can you have been tending? can they have been tending?
Forma interro-negativa
Forma simple
can I not tend? can you not tend? can she not tend? can we not tend? can you not tend? can they not tend?
Forma con V-ing
can I not be tending? can you not be tending? can she not be tending? can we not be tending? can you not be tending? can they not be tending?
Perfecto
can I not have tended? can you not have tended? can she not have tended? can we not have tended? can you not have tended? can they not have tended?
Perfecto con V-ing
can I not have been tending? can you not have been tending? can she not have been tending? can we not have been tending? can you not have been tending? can they not have been tending?